The Development and Testing of a New Version of the Cognitive Reflection Test Applying Item Response Theory (IRT)

The cognitive reflection test (CRT) is a short measure of a person's ability to resist intuitive response tendencies and to produce a normatively correct response, which is based on effortful reasoning. Although the CRT is a very popular measure, its psychometric properties have not been extensively investigated. A major limitation of the CRT is the difficulty of the items, which can lead to floor effects in populations other than highly educated adults. The present study aimed at investigating the psychometric properties of the CRT applying item response theory analyses (a two‐parameter logistic model) and at developing a new version of the scale (the CRT‐long), which is appropriate for participants with both lower and higher levels of cognitive reflection. The results demonstrated the good psychometric properties of the original, as well as the new scale. The validity of the new scale was also assessed by measuring correlations with various indicators of intelligence, numeracy, reasoning and decision‐making skills, and thinking dispositions. Moreover, we present evidence for the suitability of the new scale to be used with developmental samples. Finally, by comparing the performance of adolescents and young adults on the CRT and CRT‐long, we report the first investigation into the development of cognitive reflection. Copyright © 2015 John Wiley & Sons, Ltd.     

Intellectual and adaptive functioning in Sturge-Weber Syndrome

The present study examined the intellectual and adaptive functioning in a sample of children and young adults with Sturge-Weber Syndrome (SWS). A total of 80 research participants from a SWS study database underwent full neurological evaluation as part of their participation or concurrent medical care. Twenty-nine of the participants received neuropsychological evaluations. Analyses indicated no significant demographic or neurological differences between those who did and did not receive neuropsychological evaluations. Overall, the neuropsychological evaluation sample displayed significantly lower functioning relative to published normative data across domains of intellectual and adaptive functioning. Thirty-two percent of the sample displayed impaired performance (standard score ≤ 75) in intellectual functioning and 58% displayed impaired performance in adaptive functioning. Hemiparesis status independently predicted overall adaptive functioning while seizure frequency independently predicted overall intellectual functioning. Younger participants displayed significantly higher (more intact) ratings in adaptive functioning compared to older participants, specifically in overall adaptive functioning, motor skills, and community living skills. A composite measure of neurological status (SWS-NRS) incorporating seizure and hemiparesis status effectively distinguished between individuals with impaired or nonimpaired adaptive and intellectual functioning and showed promise as a screening method for identifying individuals with more involved intellectual and/or adaptive needs.     

Cognitive reserve and cognitive function in healthy older people: a meta-analysis

The associations between proxy measures of cognitive reserve (CR) and cognition vary across studies and cognitive domains. This meta-analysis aimed to assess the relationship between CR and cognition in multiple domains (memory, executive function, visuospatial ability, and language). CR was considered in terms of three key proxy measures – educational level, occupational status, and engagement in cognitively stimulating activities – individually and in combination. One-hundred and thirty-five studies representing 128,328 participants were included. Of these, 109 used a measure of education, 19 used a measure of occupation, 31 used a measure of participation in cognitively stimulating activities, and 6 used a combination of these. All three proxy measures had a modest positive association with cognition; occupational status and cognitive activities showed the most variation across cognitive domains. This supports the view that the commonly used proxy measures of CR share an underlying process but that each additionally provides a unique contribution to CR.     

Childhood Interrupted: A Story of Loss,Separation, and Reconciliation

This essay presents a story of personal loss and childhood trauma experienced by the author in 1968. Written in autoethnographic form, the author narrates a particular time in his life when he lost his hearing and subsequently experienced “disrupted attachment”(Becker, 1997 Becker, G. (1997). Disrupted lives: How people create meaning in a chaotic world. Berkeley, CA: University of California Press. [Google Scholar]) caused by forced separation from family on the day he began life at a residential school for deaf children. Forty-six years later, the author weaves together a narrative of loss and trauma followed by his own reflections, showing how he used writing conversation as a source of healing that allowed him reconcile with his past.     

The Role of Avoidance in Complicated Grief: A Detailed Examination of the Grief-Related Avoidance Questionnaire (GRAQ) in a Large Sample of Individuals with Complicated Grief

Grief-related avoidance is a significant component of complicated grief, yet has rarely been formally measured in a validated fashion. Further, more work is needed to understand the impact of grief-related avoidance on symptom severity and functional impairment among individuals with complicated grief (CG). The Grief-Related Avoidance Questionnaire (GRAQ; Shear, Monk et al. 2007) was created to assess grief-related avoidance and the present analysis aimed to further develop this measure and construct by confirming the GRAQ’s psychometric properties and examining loss-related predictors of avoidance. In a sample of 393 adults with CG, we found the GRAQ had high internal consistency, with a Cronbach’s alpha of 0.89 and good convergent validity. While the EFA results suggest that the GRAQ may be unidimensional, a 3-factor model generally corresponded with the findings by (Shear, Monk et al. 2007), which suggested the presence of 3 subscales. Loss-related variables age, relationship to the deceased, and cause of death were all significant predictors of GRAQ scores. Our findings support that among individuals with complicated grief, avoidance is common, measurable and an important contributor to impairment.     

Psychiatric Disorders and Childhood Parental Loss in Obesity: Relationship with the Mode of Weight Gain

We assessed the association between psychiatric disorders, childhood parental loss, and weight gain mode in 150 obese patients seeking bariatric surgery and with a history of sudden or gradual weight gain mode. Subjects with sudden weight gain mode (47%) showed significantly higher bipolar II disorder (p < .001), childhood parental death (p < .01), and separation (p < .01), but lower pure hypomania (p < .001) prevalence than subjects with gradual weight gain mode. We found preliminary evidence that lifetime bipolar spectrum disorders and childhood parental loss may influence weight gain mode in obese subjects. These findings may contribute to predict patients’ weight trajectories and implement preventive interventions.     

组织中的人际冲突:类型、模型与表达

组织中的人际冲突是组织成员在分歧、负面情绪与干扰的相互作用下,通过意义建构导致互动双方在认知、情感与行为方面产生的一系列反应过程。现有研究将组织中的人际冲突分为单特征型和多特征型,集中探讨作用模型,并基于表达层面解析冲突的维度和作用模式。本文尝试将冲突类型、表达方式以及作用模型进行嵌入式整合,提出组织中人际冲突的具体应对策略。未来研究可将认知差异嵌入过程框架,探求冲突显现的临界点,验证应对方式的有效性,探究组织权力的影响,开展基于多元亚文化下组织中人际冲突的本土化研究。     

Tool use in left brain damage and Alzheimer's disease: What about function and manipulation knowledge?

Tool use disorders are usually associated with difficulties in retrieving function and manipulation knowledge. Here, we investigate tool use (Real Tool Use, RTU), function (Functional Association, FA) and manipulation knowledge (Gesture Recognition, GR) in 17 left‐brain‐damaged (LBD) patients and 14 AD patients (Alzheimer disease). LBD group exhibited predicted deficit on RTU but not on FA and GR while AD patients showed deficits on GR and FA with preserved tool use skills. These findings question the role played by function and manipulation knowledge in actual tool use.     

Search/ing for missing people: Families living with ambiguous absence

Families of missing people are often understood as inhabiting a particular space of ambiguity, captured in the phrase ‘living in limbo’ (Holmes, 2008). To explore this uncertain ground, we interviewed 25 family members to consider how human absence is acted upon and not just felt within this space ‘in between’ grief and loss (Wayland, 2007). In the paper, we represent families as active agents in spatial stories of ‘living in limbo’, and we provide insights into the diverse strategies of search/ing (technical, physical and emotional) in which they engage to locate either their missing member or news of them. Responses to absence are shown to be intimately bound up with unstable spatial knowledges of the missing person and emotional actions that are subject to change over time. We suggest that practices of search are not just locative actions, but act as transformative processes providing insights into how families inhabit emotional dynamism and transition in response to the on-going ‘missing situation’ and ambiguous loss (Boss, 1999, 2013).     

Differential effects of assisted cycling therapy on short-term and working memory of adolescents with Down syndrome

Persons with Down syndrome (DS) suffer from prefrontal cortex dysfunction and deficits in executive functions. The current study examined the effects assisted cycling therapy (ACT) on short-term (STM) and working memory (WM) in adolescents with DS. During ACT, the cadence of participants on a stationary bicycle was augmented with an electrical motor to 180% of the voluntary cadence. Participants completed eight weeks of ACT (n?=?17), eight weeks of voluntary cycling (VC) at their own preferred cadence (n?=?16), or eight weeks of no cycling (np?≥?.149) and working memory improved only in the ACT group (Hedge’s g?=?1.66; p?=?.003). The results indicate that assisted high-cadence cycling (i.e. ACT) produces superior neural benefits in the dorsolateral prefrontal cortex compared to VC.